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General Tax Guidance

General Tax Guidance
GovConnectIowa
Press Release

Technology Modernization Program to Streamline Services for Iowans Complete; Several New Online Services Available

Iowa taxpayers and businesses now have a fully-integrated, easy-to-use revenue system for tax, alcohol, and lottery operations.

Display Date
November 20, 2025
Business Income Tax
Corporation Income Tax
General Tax Guidance

Business Taxes

Resources available specific to State of Iowa Businesses.

General Tax Guidance

File My Taxes

Iowa department of revenue filing options

General Tax Guidance

Iowa Tax/Fee Descriptions and Rates

Detailed breakdown on the different taxes and fees with the State of Iowa.

General Tax Guidance

USPS Postmark Changes: Impact on Filing and Payment Deadlines

USPS updated its Domestic Mail Manual, effective 12/24/25. This guidance explains how recent changes may affect the timeline of mailed items.

General Tax Guidance

Standard Contacts, Resources, and Tax Benefits for Businesses

Standard Contacts, Resources, and Tax Benefits for Businesses

General Tax Guidance

Letters from IDR

Your letter will explain why the Department contacted you and will give you instructions if you need to do anything.

General Tax Guidance

Tax Guidance

A general guide to taxes in Iowa. Changes in law or policy may not be immediately reflected.

General Tax Guidance

Confidentiality, Disclosure, and Authorized Representation

The Department is committed to protecting all confidential information and personally identifiable information, such as social security numbers in its custody.

July 1, 2024
General Tax Guidance

Filing Frequency & Return Due Dates

Filing frequencies and return due dates for Iowa Sales and Use Tax and Withholding Income Tax.

General Tax Guidance

Taxpayer Bill of Rights

Iowa taxpayers have certain rights during audit, billing, and collection activities of the Department.

July 1, 2024
General Tax Guidance

Have You Moved?

If you have moved, be sure to update your information with the Department.

Business Income Tax
Sales, Use & Excise Tax
General Tax Guidance

Voluntary Disclosure Program

The voluntary disclosure program encourages unregistered business entities and persons to voluntarily contact the Department regarding unreported Iowa tax.

General Tax Guidance

Abatement

The abatement process can be used to request to settle your tax bill for less than the amount due or in some cases to cancel your billing entirely.

General Tax Guidance
Sales, Use & Excise Tax

Disaster Emergency Tax Penalty Relief

Guidance released on how people affected by the Disaster Emergency Proclamation can seek tax penalty relief.

July 16, 2024

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